NOR 720
A tiny seal with impressive dB reductions. This seal is only 5mm wide and once fitted only three thin 4.2mm long blades are visible, giving a discrete finish without compromising acoustic performance. The NOR 720 also has smoke seal capabilities in accordance with BS 476 Part 31:1 and its design is based on ‘dual air pocket technology‘ which acts in the same way as triple glazing. We have cycle tested the NOR 720 acoustic seal up to 100,000 opening and closing cycles. NOR 629
The recommended gap tolerance is 3mm - 4mm.
Technical Specification
| Key Benefits |
- BS476 Pt 31:1
- Stylish Ultra Smooth Blades
- Excellent Profile Recovery
- Dual Air Pocket Technology
- Unaffected by Door Furniture
- Smoke Seal
- Reduced Heat-Loss Capabilities
|
| Colour / Finish |
Black, Brown and White |
| Material |
Co-extruded Rigid Base with Flexible Fins |
| Fixing Method |
Kerf Fit 3mm Wide x 4mm Deep |
| Length(s) |
2100mm |
| Availability |
EX-STOCK |
| Application(s) |
Single / Double Leaf Doorsets
Single Action / Double Action Doorsets
Suitable for Meeting Stiles
|